Northrop Grumman Systems Corporation · Electronic Components
23RS4A
Resolver, Electrical
Part Number23RS4A
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-647-2016 (NSN)
Federal Item NameRESOLVER,ELECTRICAL
Federal Supply Class5990 — Synchros and Resolvers
Transformation Ratio1.027 ROTOR TO STATOR NOMINAL
Overall Length4.5590 INCHES NOMINAL
Shaft Length0.6100 INCHES NOMINAL SINGLE SHAFT
Body Size23
Shaft Thread Class3A SINGLE SHAFT
Terminal LocationREAR
Shaft Thread DirectionRIGHT-HAND SINGLE SHAFT
Stator Input Voltage Rating In Vol10.0 MINIMUM AND 90.0 MAXIMUM
Shaft Thread Length0.3100 INCHES NOMINAL SINGLE SHAFT
Frequency In Hertz400.0 NOMINAL
Shaft Nominal Thread Size0.2500 INCHES SINGLE SHAFT
Vendor Part Numbers105-440-1
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 23RS4A available?
We can source 23RS4A even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 23RS4A by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 23RS4A has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 23RS4A?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 23RS4A?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.